I used to say a variation of this to many people when they were upset only because they would always claim "YES IT IS THE END! IT CAN'T GET WORSE!" (not believing that it could, being dead could be worse after all) and so I'm fond of this quote. :)

I used to say, "It'll be okay. It wont be fantastic, it wont be great, hell it wont even be GOOD, but in the end, it'll always be okay."